One of my specialties is Celebrity Voice Impressions.  I’ve used these impressions below in various audio projects, and also in comedy routines:

ACTORS

Jack Nicholson
Jim Carrey (& Fire Marshall Bill)
Sylvester Stallone (& Rocky)
Christopher Walken
Christopher Lloyd
Johnny Depp
Bruce Lee
Jackie Chan
Conor McGregor
Michael Caine
Kit Harrington – as Jon Snow from Game of Thrones
Jerry Seinfeld
Jason Statham
Arnold Schwarzenegger
Robin Williams
Johnny Carson
Jay Leno
Bill Cosby
Jimmy Stewart
Patrick Stewart
James Mason
Boris Karloff
William Shatner (Capt. Kirk)
George Takei (Sulu)
Sean Connery
Marlon Brando
Ray Romano
Jean Claude Van Damme
Dr. Phil

POLITICIANS

Barack Obama
George W. Bush
Bill Clinton
George H.W. Bush
Ronald Reagan
Jimmy Carter
J.F.K.
Al Gore

CARTOONS & CHARACTERS

Scooby Doo
Shaggy
Homer Simpson
Marge Simpson
Apu
Mickey Mouse
Donald Duck
Goofy
Yoda
Kermit The Frog
Cookie Monster
Austin Powers
Shrek
Ed Wynn (Mad Hatter from Disney)
Monty Python Characters
Beavis & Butthead
Bullwinkle
Yogi Bear